Extension-hopper for separators



UNITED STATES PATENT OFFICE.

JOHN BEAN, OF HUDSON, MICHIGAN.

EXTENSION-HOPPER FOR SEPARATORS, GRAIN-MILLS, 8w.

Specification of Letters Patent No. 16,57 8, dated February 10, 1857.

To all whom it may concern:

Be it known that I, JOHN BEAN, of Hudson, in the county of Lenawee and State of Michigan, have invented a new and Improved Grain and Grass-Seed Separator; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure 1, is a longitudinal vertical section of my improvement, 'y, 3 Fig. 2, showing the plane of section. Fig. 2, is a transverse vertical section of the same, a", m, Fig. 1, showing the plane of section.

Similar letters of reference indicate corresponding parts in both figures.

This invention relates to a new and improved machine for separating grass seed from grain and cleansing both from impurities and foreign substances, at the same time.

This invention consists in the combination of an adjustable extension piece with the hopper, so that the dimensions of the hopper may be altered at pleasure.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents a framing on the upper part of which a hopper B, is placed, one end a, of said hopper being adjustable and arranged by attaching it by set screw 6, to the stationary part of the hopper, the set screws working in slots 0, c, in the sides of the stationary part. The part a, may thereby be moved in or out so that the orifice at the bottom of the hopper may be enlarged or contracted and the part a, may also be turned upward more or less obliquely as desired. This will be understood by referring to Figs. 1 and 2.

C, represents a shoe, which is of the usual form and placed within the framing A. The front end of the shoe is attached to two pendents (Z, a, which are secured to the end of the framing A, and the back end of the shoe has a connecting rod 6, attached to it, said rod being attached to a crank pulley f, which is fitted on the upper part of a vertical shaft D placed within the framing A. The shaft D, has a fan E, placed upon it, said fan being inclosed by a proper box F.

G, is a blast spout which leads from the upper part of the fan box F, to a discharge spout H, on the upper part of the framing A.

The shoe 0, has three screens placed in it; the upper one I, extends the whole length of the shoe; the screen J, immediately below it extends only a portion of the length of the shoe, about half the length, and has an inclined plate 9, placed under it, said plate conducting the material or substance which passes through the screen J, into the spout H, as clearly shown in Fig. 2. The upper screen I is inclined downward from its inner to its outer end, as shown in Fig. 1.

K, is a screen which is placed in the lower part of the shoe C. This screen inclines downward from its outer to its inner end.

The fan box F, has an opening made through it, opposite the space between the two screens J, K, as shown in Fig. 1.

The grain is placed within the hopper B, which may be enlarged or contracted so as to regulate the feed of the grain to the screens as desired, and motion is given the shaft D, in any proper manner, the grain passing down upon the upper screen I, the back part of which has a curvilinear lateral movement given it by the crank pulley f, and connecting rod 6, the front part of the screen having a longitudinal reciprocating movement. The chaif and other large and light foreign substances are blown off the outer end of the screen I, but the sound grain passes through the screen I. The grass seed which is considerably smaller than the grain, passes immediately through the screen I, at its inner end and falls upon and through the screen J, and is conveyed by the inclined plate 9, into the spout A, where it is subjected by a blast from the fan E, and all dust and dirt blown from it. The grass seed falls into a proper receptacle placed underneath the spout A. The grain falls upon the lower screen K, which is too fine to allow it to pass through, and the grain consequently passes off the inner end of the screen K, the dust and light foreign substances being blown from it by the fan. Thus it will be seen that the grain and grass seed are separated and discharged from the machine at separate points and both the grain and grass seed are perfectly cleansed and freed from all impurities and foreign substances.

I claim the combination of an adjustable extension piece a, with the hopper B, in the manner and for the purposes substantially as herein set forth.

JOHN BEAN. WVitnesses:

A. A. FINNEY, W. H. COGSWELL. 

